Page 48 - Quantitative Data Analysis

Quantitative Data Analysis
Simply Explained Using SPSS

4. Example- 1
H a: There is a significant relationship between teacher salary
and students performance.

Statistical form H 0:  1≠ 2
H 0:  1 -  2≠ 0
or

5. Example- 2
H 0: There is a significant difference in the emotional stability
between male employees and female employees.

Statistical form H 0:  1≠ 2
H 0:  1 -  2≠ 0
or

One-tailed vs Two-tailed Hypotheses

1. Non-directional (two-tailed) hypothesis

With a two-tailed (non-directional) test, you reject the null
hypothesis if the sample mean is either significantly greater
or less than the hypothesized value. It does not indicate
which groups will have an increase or decrease in what is
being measured (experiments, ex post facto) or the
direction of the relationship (correlational studies).

2. Directional (one-tailed) hypothesis

The Theory and Applications of Statistical Inferences 32